Giuliano Costa Books

Pre Raphaelite Tarot

By Giuliano Costa

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Jack O Lantern Tarot

By Giuliano Costa, Rachel Paul

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Tarot of Traditions Deck

By Giuliano Costa

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Known for his use of rich colors and high-quality compositions, Giuliano Costa presents a new Rider-Waite-style tarot that will inspire every reading. This deck gives traditional symbols a rustic f...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.